User's Manual
Table Of Contents
- 1 Overview and Key Features
- 2 Specification
- 2.1 Specification Summary
- 3 Hardware Specifications
- 3.3.4 OTA (Over-the-Air) smartBASIC Application Download
- 4 Power Consumption
- 5 Functional Description
- 5.1 Power Management (includes Brown-out and Power on Reset)
- 5.2 Clocks and Timers
- 5.3 Memory for smartBASIC Application Code
- 5.4 Radio Frequency (RF)
- 5.5 NFC
- 5.6 UART Interface
- 5.7 SPI Bus
- 5.8 I2C Interface
- 5.9 General Purpose I/O, ADC, PWM and FREQ
- 5.10 nRESET pin
- 5.11 nAutoRUN pin
- 5.12 vSP Command Mode
- 5.13 Two-wire Interface JTAG
- 5.14 BL652 Wakeup
- 5.15 Low Power Modes
- 5.16 Temperature Sensor
- 5.17 Random Number Generator
- 5.18 AES Encryption/Decryption
- 5.19 Optional External Serial (SPI) Flash
- 5.20 Optional External 32.768 kHz crystal
- 5.21 BL652-SA On-board Chip Antenna Characteristics
- 6 Hardware Integration Suggestions
- 7 Mechanical Details
- 8 Application Note for Surface Mount Modules
- 9 FCC and IC Regulatory Statements
- 10 Japan (MIC) Regulatory
- 11 CE Regulatory
- 12 EU Declarations of Conformity
- 13 Ordering Information
- 14 Bluetooth SIG Qualification
BL652
Datasheet
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
8
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Europe: +44-1628-858-940
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Module Specification Notes:
Note 2
With I2C interface selected, pull-up resistors on I2C SDA and I2C SCL must be connected externally as
per I2C standard.
Note 3
SPI interface (master) consists of SPI MOSI, SPI MISO, and SPI CLK. SPI CS is created by using any
spare SIO pin within the smartBASIC application script allowing multi-dropping.
Note 4
The BL652 module comes loaded with smartBASIC runtime engine firmware but does not come
loaded with any smartBASIC application script (as that is dependent on customer-end application or
use). Laird provides many sample smartBASIC application scripts covering the services listed.
Additional BLE services are being added every quarter.
Note 5
Use of the internal DCDC convertor or LDO is decided by the underlying BLE stack.
Note 6
These figures are measured on the BL652-Sx-xx.
Deep Sleep current for BL652-Sx-xx ~400nA (typical)
Standby Doze current for BL652-xx-A1 1.2uA (typical)
Note 7
PWM output signal has a frequency and duty cycle property. PWM output is generated using
dedicated hardware in the chipset. There is a trade-off between PWM output frequency and
resolution.
For example:
PWM output frequency of 500 kHz (2 uS) results in resolution of 1:2.
PWM output frequency of 100 kHz (10 uS) results in resolution of 1:10.
PWM output frequency of 10 kHz (100 uS) results in resolution of 1:100.
PWM output frequency of 1 kHz (1000 uS) results in resolution of 1:1000.
Refer to the smartBASIC user guide for details. It’s available from the Laird BL652 product page.